Re: Another device - another principle?
EEG reads the level (voltage) of electrical signals with the brain. (brainwaves) Biofeedback reads the electrical resistance between the 2 electrodes on the hand sensor. It passes a small amount of current through the skin. When the skin is wet the resistance is low (current flows better through a wet surface). When the skin is dry the resistance increases.
No the ThoughtStream cannot act as an EEG.
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